Strap for Avenger II GMT Stainless Steel / Mariner Blue / Calf / Pin

The lug width of the Breitling Avenger A3239011/C872/437X/A20BA.1 is 22mm. This measurement is taken between the inner edges of the lugs at the 6 o'clock side using a millimetre ruler. Any strap with a 22mm attachment width is compatible with this reference.

The ideal choice depends on intended use. A premium nylon NATO strap honours the aviator heritage and handles moisture well. A vegetable-tanned alligator strap with a deployant clasp creates a refined contrast against the brushed stainless steel case. A vulcanised rubber strap is the most technically appropriate solution for demanding conditions. The correct width in all cases is 22mm.

Strap replacement requires a 1.5mm spring bar tool or a dedicated lever-type tool. Insert the tip into the slot on the spring bar, compress and slide the bar out. The operation takes approximately two minutes per side. Work on a soft surface to avoid scratching the case or bezel.

Yes. Any strap with a 22mm attachment and standard length (approximately 120/75mm) is compatible. Milano Straps offers a handcrafted selection in alligator, boxcalf, shell cordovan and NATO, available in the 22mm strap section. Original spring bars may be reused or replaced with stainless steel 22mm equivalents.

Longevity depends on leather type, frequency of wear and exposure to perspiration and moisture. A quality calfskin strap under normal conditions typically lasts 18 to 24 months. A vegetable-tanned alligator strap, being denser and more compact, can exceed three years whilst retaining structure and patina. Leather straps should not be worn during water activities and should be allowed to air between uses.